Honeywell STT850 SMARTLINE, User Manual

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Page 26
STT850 Temperature Transmitter User’s Manual
Revision 3
Non-Critical
Input 1 TB6
OK
OPEN
OPEN: Input 1 terminal TB6 is open
Input TB7
OK
OPEN
OPEN: Input 2 Terminal TB7 is open
(RTD and Ohm sensors only)
Input 1 TB8
OK
OPEN OPEN: Input 1 terminal TB8 is open
Applicable to RTD 4 wire
configuration for Sensor 1 RTD or
Sensor 1 Ohm input
Input 2 TB8
OK
OPEN
OPEN: Input 2 terminal TB8 is open
Applicable to dual input model
Input 2 TB9
OK
OPEN
OPEN: Input 2 terminal TB9 is open
Applicable to dual input model
Factory Cal
OK
NO FACTORY CAL
The transmitter has not been
calibrated by the factory.
Supply Voltage
OK
LOW OR HIGH
LOW: Supply voltage is below the
low specification limit.
HIGH: Supply voltage is above the
high specification limit.
Comm Module Temp
OK
OVER TEMP
OVER TEMP: Electronics
temperature is greater than 85

C or
less than -40

C.
DAC Temp Comp
HART/DE only
OK
NO
COMPENSATION
The DAC has not been compensated
for temperature effects. This is a
factory operation.
Sensor Comm
OK
SUSPECT
SUSPECT: The interface between
the Temperature Sensor Module and
the Electronics Module is
experiencing intermittent
communication failures.
Display Setup
HART only
OK
NVM Corrupt
NVM Corrupt: The Display memory is
corrupt.
Excess: Delta (Dual
Inputs only)
(HART/FF only) OK
EXCESSIVE
EXCESSIVE: Delta value exceeds
Delta Limit
Internal Power
(HART only)
OK
LOW OR HIGH
LOW:
Internal power is below 2.9V”
and “HIGH: Internal power is above
3.2V.
Digital Output
ON
OFF
State of Digital Output